function left_nav(ontab) {
}


function sub_nav(ontab) {
	document.writeln("<table border='0' width='563px' height='21px' cellpadding='0' cellspacing='0' background='images/subnav_bg.gif'>");
	document.writeln("	<tr><td width='5px'><img src='images/subnav_leftedge.gif' border='0'></td>");
	document.writeln("		<td width='11px'><img src='images/subnav_left.gif' border='0'></td>");
	
	if (ontab == 1)
	{	document.writeln("	<td width='74px'><img border='0' src='images/subnav_phil_over.gif' name='sn_phil'></a></td>");
	} else {
		document.writeln("	<td width='74px'><a href='philosophy.htm' onmouseover=\"sn_phil.src='images/subnav_phil_over.gif'\" ");
		document.writeln("		onmouseout=\"sn_phil.src='images/subnav_phil.gif'\"><img border='0' ");
		document.writeln("		src='images/subnav_phil.gif' name='sn_phil'></a></td>");
	}
	
	if (ontab == 2)
	{	document.writeln("	<td width='94px'><img border='0' src='images/subnav_famsys_over.gif' name='sn_famsys'></a></td>");
	} else {
		document.writeln("	<td width='94px'><a href='family_systems.htm' onmouseover=\"sn_famsys.src='images/subnav_famsys_over.gif'\" ");
		document.writeln("		onmouseout=\"sn_famsys.src='images/subnav_famsys.gif'\"><img border='0' ");
		document.writeln("		src='images/subnav_famsys.gif' name='sn_famsys'></a></td>");
	}
	
	if (ontab == 3)
	{	document.writeln("	<td width='102px'><a href='program_options.htm'><img border='0' src='images/subnav_progops_over.gif'></a></td>");
	} else {
		document.writeln("	<td width='102px'><a href='program_options.htm' onmouseover=\"sn_progops.src='images/subnav_progops_over.gif'\" ");
		document.writeln("		onmouseout=\"sn_progops.src='images/subnav_progops.gif'\"><img border='0' ");
		document.writeln("		src='images/subnav_progops.gif' name='sn_progops'></td>");
	}
	
	if (ontab == 4)
	{	document.writeln("	<td width='118px'><img border='0' src='images/subnav_firsttime_over.gif' name='sn_firsttime'></a></td>");
	} else {
		document.writeln("	<td width='118px'><a href='first_time.htm' onmouseover=\"sn_firsttime.src='images/subnav_firsttime_over.gif'\" ");
		document.writeln("		onmouseout=\"sn_firsttime.src='images/subnav_firsttime.gif'\"><img border='0' ");
		document.writeln("		src='images/subnav_firsttime.gif' name='sn_firsttime'></a></td>");
	}
	
	if (ontab == 5)
	{	document.writeln("	<td width='66px'><img border='0' src='images/subnav_selftests_over.gif'></a></td>");
	} else {
		document.writeln("	<td width='66px'><a href='selftests.htm' onmouseover=\"sn_selftests.src='images/subnav_selftests_over.gif'\" ");
		document.writeln("		onmouseout=\"sn_selftests.src='images/subnav_selftests.gif'\"><img border='0' ");
		document.writeln("		src='images/subnav_selftests.gif' name='sn_selftests'></a></td>");
	}

	if (ontab == 6)
	{	document.writeln("	<td width='93px'><img border='0' src='images/subnav_newsletters_over.gif'></a></td>");
	} else {
		document.writeln("	<td width='93px'><a href='newsletters.htm' onmouseover=\"sn_newsletters.src='images/subnav_newsletters_over.gif'\" ");
		document.writeln("		onmouseout=\"sn_newsletters.src='images/subnav_newsletters.gif'\"><img border='0' ");
		document.writeln("		src='images/subnav_newsletters.gif' name='sn_newsletters'></a></td>");
	}

	document.writeln("</table>");
}